<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
  <link rel="stylesheet" href="./css/index.css" />
</head>

<body>
  <div class="container">
    <ul class="top">
      <!-- 基础模板 -->
      <li>
        <a href="javascript:;">首页</a>
        <ul class="sub">
          <li>
            <a href="javascript:;">
              <span>砂锅厨具</span>
              <img src="https://yanxuan.nosdn.127.net/3102b963e7a3c74b9d2ae90e4380da65.png?quality=95&imageView" alt="">
            </a>
          </li>
        </ul>
      </li>
    </ul>
  </div>
  <script src="./axios.js"></script>
  <script>
    window.onload = function () {
      axios({
        url: 'http://ajax-api.itheima.net/api/category/top',
      }).then((res) => {
        console.log('res', res.data.data)
        const arr = res.data.data.map((item) => {
          return axios({
            url: 'http://ajax-api.itheima.net/api/category/sub',
            params: {
              id: item.id,
            },
          })
        })
        console.log('arr', arr)
        Promise.all(arr).then((res1) => {
          console.log('res九次请求的结果', res1)
          const str = res1
            .map((v) => {
              return `      <li>
        <a href="javascript:;">${v.data.data.name}</a>
        <ul class="sub">
          ${v.data.data.children.map((item2) => {
        return `<li>
            <a href="javascript:;">
              <span>${item2.name}</span>
              <img src="${item2.picture}" alt="">
            </a>
          </li>`
          }).join('')}
              
            </ul>
          </li>`
              
            })
            .join('')
          document.querySelector('.top').innerHTML = str
        })
      })
    }
  </script>
</body>

</html>

